53660261616 has 160 divisors (see below), whose sum is σ = 150993460800. Its totient is φ = 16323059712.

The previous prime is 53660261593. The next prime is 53660261659. The reversal of 53660261616 is 61616206635.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21662170 + ... + 21664646.

It is an arithmetic number, because the mean of its divisors is an integer number (943709130).

Almost surely, 2^53660261616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53660261616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75496730400).

53660261616 is an abundant number, since it is smaller than the sum of its proper divisors (97333199184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53660261616 is a wasteful number, since it uses less digits than its factorization.

53660261616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883 (or 2877 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 53660261616 in words is "fifty-three billion, six hundred sixty million, two hundred sixty-one thousand, six hundred sixteen".